The five-foot long dwarf caiman, which resembles an alligator, arrived at the zoo Wednesday critically ill and non-responsive, according to a statement from the Oakland Zoo.

A zoo veterinarian confirmed the caiman died overnight, according to the zoo.

The caiman was found after Alameda County Sheriff’s investigators entered 32-year-old Assif Mayar’s home on Wednesday afternoon for a probation check. They found not only 34 pounds of marijuana valued at an estimated $100,000 but also the caiman inside a tank in a bedroom.

“We get guard dogs all of the time when we search for grow houses and people stashing away all types of dope. But alligators? You just don’t see that every day,” Sgt. J.D. Nelson said.